module

MongoDB Memory Disclosure (CVE-2025-14847) - Mongobleed

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Disclosed
Dec 19, 2025
Created
Dec 30, 2025

Description

This module exploits a memory disclosure vulnerability in MongoDB's zlib
decompression handling (CVE-2025-14847). By sending crafted OP_COMPRESSED
messages with inflated BSON document lengths, the server reads beyond the
decompressed buffer and returns leaked memory contents in error messages.

The vulnerability allows unauthenticated remote attackers to leak server
memory which may contain sensitive information such as credentials, session
tokens, encryption keys, or other application data.

Authors

Alexander Hagenah
Diego Ledda
Joe Desimone

References

Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':


    msf > use auxiliary/scanner/mongodb/cve_2025_14847_mongobleed
    msf auxiliary(cve_2025_14847_mongobleed) > show actions
        ...actions...
    msf auxiliary(cve_2025_14847_mongobleed) > set ACTION < action-name >
    msf auxiliary(cve_2025_14847_mongobleed) > show options
        ...show and set options...
    msf auxiliary(cve_2025_14847_mongobleed) > run
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